The technical parameters of copper- nickel sulfide ore melting furnace at home and abroad are shown in the following table: Main parameters of copper-nickel antimony ore melting furnace project Domestic factory Beichen Company 1 North Nickel Corporation 2 Norilsk Thompson Furnace internal dimensions (length × width × height) / m 21.5×5.5×4.0 22.74×5.54×5.1 11.2×5.2×4.0 23.2×6.0×5.1 27.4×6.71×3.96 Hearth area / m 2 118.25 126 58 139 184 Electrode diameter / m 1 1.1 1.2 1.2 1.22 Electrode center distance / m 3 3.2 3 3.2 3.76 Number of electrodes 6 6 3 6 6 Number of electric furnace transformers 3 3 1 3 3 Transformer capacity (total capacity) / kVA 5500 (16500) 16667(50000) 30000 (30000) 15000 (45000) 6000 (18000) Pressure side line voltage / V 304~470 800~475 550~390 743~551 300~160 Power intensity / [kVA.m -2 ] 140 396 517 324 98 Bottom brick Magnesium brick Chrome magnesia brick clay brick Cement, magnesia brick cement Magnesium filler Clay brick Chrome magnesium brick Slag line wall Magnesia brick Chrome magnesium brick Magnesia brick Chrome magnesium brick Magnesia brick Slag line above the furnace wall brick Clay brick Clay brick Clay brick Clay brick Clay brick Furnace lining thickness / mm 807         Bottom (center) / mm 1250 1310 920 1310 1065 Slag end wall thickness / mm 1040 1150 920 1040 1260 Outlet end wall thickness / mm 1040 1150 1215 1150 1180 Side wall thickness / mm 807 1150 690 1040   Furnace thickness / mm 300 300 300 300 950 Number of mouths 3 4 3 4 3 Number of slag mouth 3 4 2 4 1 Slag mouth height from the bottom of the furnace / mm 1300 1750 1500 1450 1525 Molten pool depth / mm 21000 2700 2500 2700 - Nickel crucible depth / mm 600~900 600~800 600~800 600~900 600~750 Electric furnace operating power / kW   40000 27000 40000 12000-15000 Average drop distance per electrode / (mm.d -1 ) 250 450~500 400~500     Ton charge energy consumption / kWh 600 740 780~815 525~625 400~430 Tons of furnace electrode consumption / kg 5.7~7.8 4.1 2.9 2.8~3.4 1.75~1.9 1 working voltage 341V , electrode depth 700 ~ 1000mm ; 2 working voltage 500 ~ 550V , electrode depth 500 ~ 700mm .
cnc machine for steel plate is used for punching, drilling, tapping on big size steel plate.
There are three kinds of machines,
one is Gantry Type Plate Drilling Machine is used for drilling holes on steel plate, max.thickness is 300mm.
second is gantry type plate drilling tapping machine, which can do tapping job on steel plate.
third is high speed gantry type plate drilling machine, the max, drilling speed can up to 6000rpm.
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